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; With sub reassociation, constant folding can eliminate the 12 and -12 constants.
;
; RUN: llvm-upgrade < %s | llvm-as | opt -reassociate -constprop -instcombine -die | llvm-dis | not grep 12
int "test"(int %A, int %B) {
%X = add int -12, %A
%Y = sub int %X, %B
%Z = add int %Y, 12
ret int %Z
}
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